[Limdep Nlogit List] Error in bootstrapping coefficients in Poisson Panel Model

William Greene wgreene at stern.nyu.edu
Fri Jul 25 11:28:32 EST 2008

Derek. Version 8.0 did not have the capability to do this kind of
bootstrapping with panel data. That was new with 9.0. I believe this
will explain the diagnostic.
Bill Greene

----- Original Message -----
From: "Derek Eaton" <Derek.Eaton at wur.nl>
To: limdep at limdep.itls.usyd.edu.au
Sent: Thursday, July 24, 2008 9:31:35 AM (GMT-0500) America/Bogota
Subject: [Limdep Nlogit List] Error in bootstrapping coefficients in Poisson Panel Model

Hello all,

In trying to bootstrap the coefficient estimates in an unconditional
2-way Fixed Effects Poisson Model (with unbalanced panel), LIMDEP stops
after the first repetition with the following error messages and I
cannot figure out why:

Error   352: Model with Panel. Sum of T(i) not equal to full sample size
Error   498: Skipping  99 repetitions after error flag set.

A single run of the basic model works before I try bootstrapping. But
after trying bootstrapping and receiving the error message, any future
attempt to do a single run of the basic model also yields the above

My commands are modelled on the example in the manual:

CALC		; vars = Col(xf) $
MATRIX	; bb = Init(vars,1,0.0)$
		; Fem ; Pds=ni $
 MATRIX	; bb = b $
EXEC		; Bootstrap=bb ; N=100 $

One last note: I am still working with Version 8.0
Any advice would be very much appreciated.

Derek Eaton 
Researcher, International Trade & Development 
Agricultural Economics Research Institute (LEI) 
part of Wageningen University & Research Centre 
P.O. Box 29703, The Hague, 2502LS, The Netherlands 
(derek.eaton AT wur.nl)

Limdep site list
Limdep at limdep.itls.usyd.edu.au

Professor William Greene
Department of Economics
Stern School of Business
New York University
44 West 4th St., Rm. 7-78
New York, NY   10012

More information about the Limdep mailing list